Identifies the sequence of the message/package within the sender's interchange and the position in a multi-message and/or package transfer.
Notes: 1. 0320, starts at 1 and is incremented by 1 for each message and package within the interchange. 2. 0323, only used where more than one message or package is contained in a single query or response. 3. 0325, only used if a duplicate transfer.
Pos
Tag
Name
S
R
Repr
Notes
010
0320
Sender sequence number
Identification of the sequence number of the message or package within the sender interchange.